Miles c



@sin f sral vnur rrcn.

MILES C. MIX, OF` DANBY, NEW YORK.

MACHINE FOR REMO'VIVNG STUMPS AND OTHER HEAVY BODIES.

T 0 all 107mm t may concern i Be it known thatrI, MILES C. MIX, ,of Danby, in the county of Tompkinsv and State of New Yorkhave invented an Improved Machine for Removing Heavy Bodies, such as Houses, Rocks, theUprooting of Stumps, &c., which I denominate a ConvergeDifferential-Power Machine; and I do hereby declare that the following is a full and exact description thereof. f

'In the accompanying drawing Figure l represents a perspective view of the machine attached to a stump to be removed; A, being a strong chain, which is to be wound around the main shaft B, made of iron, andv revolving in suitable boXes in the side timbers of the frame E, E, of the machine.

The principal improvement consists in the mode in which I construct the gearing by which the machine is to be operated,vand which will be presently described.

C, is a wheel or case which is made fast to the shaft B, and contains a part of the gearing, having teeth pointing, or converging inwardly on the interior of its periphery.

D, is a wheel which also makes a part of the gearing, having like C, teeth converging or pointing inwardly, and which has also, one or more projecting t-eeth, or pins h, on its side to admit of its being held firmly, and prevented from turning byI the rod attac-hed to the frame at one end and furnished with a hook or notch at the other, which when it catches upon one of the teeth or pins 7i, prevents the wheel D, from revolving, as shown distinctly in the drawing.

F, is a tongue, by which the machine is to be drawn from place to place, and which when in use, is employed to prevent the tilting up of the forward end of the machine. The ropes t, h, attached to the tongue and to the frame, hold it vertically when the machine is hauling, or drawing against a stump, or other resisting body, and the rope 7?, is carried forward, and anchored, or made fast to any immovable body, which of course holds down the forward end of the carriage; its hind end resting upon the ground, and being in such shape as shall cause it to sink into, and take firm hold of, the'ground.

When the machine is to be remo-ved, I raise its hind end so as to run upon a truck wheel I, embraced between straps H, proceeding from a revolving shaft G, which erating like that of a common caster, only being larger. The main bearing wheels J, J, are onthe samel shaft with the gearing apparatus, it

lbeing extended out so as to constitutetheir axles, and upon which they turn freely.

Fig. 2, shows the main shaft, with the eX- terior of the gearing apparatus. Fig.' 3, av section through the gearing apparatus, and' Figs. Ll, 5, 6, 7, and 8, thisA apparatusin detail. `The same letters of reference are used as in Fig. l, wherever the saine parts are shown,

In Fig. Ll, the interior teeth areseen on the large wheel C; of these, inthe working machine, there are thirty-seven.

Fig. 5, is a frame, c, a, containing the pinions b, b, o, running between the circles of the frame. Each of these pinions is rep-V resented as double with `a `plate between them, but they operate each as one long pin' ion, the plate serving merely to keep them the better in place, as one end of each pinion gears into the teeth within the wheel C, and the other half in the teeth within the wheel D, Fig. 6. On the interior o-f this latter wheel, there are, in the working ma.- chine, thirty-six teeth. The difference in the size of the twoends of the pinions Z), o; or of the wheels C, and D, to accommodate the vgearing to this difference of one. tooth will be but triling. The frame a, is placed within the wheel C, which embraces one half of the pinion Z2, o, and the wheel D is then passed over the other half, which reach through it so as to be flush with its face.

Fig. 7 is a pinion c, which passes over the end of the shaft B, and gears into that end of the pinions b, o, which are within the wheel D. This pinion has projections e, e, upon its face, with which a pin f, may be brought into contact, and cause it to pass around, operating, by its sliding as an engaging and disengaging bolt.

In Fig. 8, o, 0, is a pulley or drum, around which a ro-pe is coiled, which may be used when a rapid motion is wanted, and upon which also, are the handles m, fm, for they purpose of turning it by hand. On the inner face of this drum is the light wheel K, which is toothed, to receive the action of a pinion as in Figs. 1 and 8, by which the power of the first mover is to be conveyed to the machine. The bolt f, passes through the body of this drum as shown in the secmay be held in place when in gear.

The manner of operating with this machine and the great power which it possesses, will now be obvious. VVhen the chain is passed around a stump, or affixed Vto any ,other object which is to be removed, and

which requires the exertion .of great `power to produce that effect, the back end of. the frame of the machine is allowed to rest upon the ground, either against any xed obstacle, or to anchor itself therein, which its power and strength will enable it `to do, the hookV upon the bar b, is "made to take hold of the'pin, orftooth it, on the wheel D, which being loose would otherwise revolve; the pinion le, is then turned by the winchin, or otherwise, which gives motion tof the wheel K, and the drum, 0, causing the bolt f, to turn the pinion 0,' this causes the'` pinions b, to roll around within D, as they the number of `their teeth, and, ofcourse, y

with proportionately increased po-wer. The

Anumber of teeth in the two wheels C and D 1may be varied in any proportion which may be deemed mostfreligible, `the'rnumber which I have named being arbitrary, but such as YI have essayed, and ,found toanswer well 'in practice.- The Vnumber vof pinions J1, Z), ,may also vary.` I 1f Y A l WhatI claim as my invention isl `The particular manner of `obtaining' the p power` by the constructionfand arrange- IInentf of the gearing as vherein set forth; thatis to say, the mode of operating by two or more sets of double pinionson two 'dif- 'ferential wheels, through the intermedium,

@and by means of an apparatus combined and .p

,connected substantially as herein set "forth, lffor the purpose of removing stumps, or other` i articles, requiring great power, and-'to `which such `a machine adapted.

o y Minnsjo. MIX, f 'l 

